open-nomad/client/getter/getter.go
2015-11-05 08:55:30 -06:00

44 lines
1.1 KiB
Go

package getter
import (
"fmt"
"log"
"net/url"
"path"
"path/filepath"
"runtime"
"strings"
"syscall"
gg "github.com/hashicorp/go-getter"
)
func GetArtifact(destDir, source, checksum string, logger *log.Logger) (string, error) {
if source == "" {
return "", fmt.Errorf("Source url is empty in Artifact Getter")
}
u, err := url.Parse(source)
if err != nil {
return "", err
}
// if checksum is seperate, apply to source
if checksum != "" {
source = strings.Join([]string{source, fmt.Sprintf("checksum=%s", checksum)}, "?")
logger.Printf("[DEBUG] client.getter: Applying checksum to Artifact Source URL, new url: %s", source)
}
artifactFile := filepath.Join(destDir, path.Base(u.Path))
if err := gg.GetFile(artifactFile, source); err != nil {
return "", fmt.Errorf("Error downloading artifact: %s", err)
}
// Add execution permissions to the newly downloaded artifact
if runtime.GOOS != "windows" {
if err := syscall.Chmod(artifactFile, 0755); err != nil {
logger.Printf("[ERR] driver.raw_exec: Error making artifact executable: %s", err)
}
}
return artifactFile, nil
}